{"title":"乙醇水混合的PVA-chitosan膜是透明的","authors":"I. Noezar","doi":"10.5614/jtki.2008.7.1.3","DOIUrl":null,"url":null,"abstract":"One of the technologies for ethanol-water separation is pervaporation. The principles of pervaporation is based on the difference in diffusional rate and solubility of the solution components in membranes. The performance of the membrane, in terms of flux and selectivity, is influenced by the swelling of the membrane due to the interaction between the solution components and the membrane materials. Membrane modification is done by forming chemical bonding between PVA and chitosan, using glutaraldehyde as crosslinking agent. The performance of the PVA-chitosan crosslinked membrane for ethanol-water separation is characterized by high mass flux and reasonably high selectivity. Pressure observed on the permeate side was 0.5 mbar, with a feed ethanol concentration of 93%. Experimental results indicate that the PVA membrane has a higher degree of swelling compared to the crosslinked PVA-chitosan membrane. The PVA-chitosan crosslinked membrane has a higher selectivity compared to the PVA membrane. The highest flux of 0.833 kgm-2hour-1 was produced by the PVA membrane. The highest selectivity of 2.820 was obtained using a 1:1 PVA-chitosan crosslinked membrane.Keywords: PVA-chitosan; crosslinked; pervaporation Abstrak Salah satu teknologi untuk pemisahan etanol-air adalah pervaporasi. Prinsip pemisahan pervaporasi adalah dengan perbedaan laju difusi dan kelarutan komponen campuran pada membran. Kinerja membran berupa fluks dan selektivitas dipengaruhi oleh kondisi swelling membran akibat interaksi komponen dengan material membran. Modifikasi membran dilakukan dengan membentuk ikatan kimia antara PVA dan chitosan dengan glutaraldehid sebagai crosslinking agent. Kinerja membran PVA-Chitosan crosslinked dalam pemisahan campuran etanol-air berupa fluks massa yang tinggi dan selektivitas yang cukup besar. Tekanan pada sisi permeat 0,5 mbar dengan konsentrasi etanol umpan 93%. Hasil penelitian menunjukkan membran PVA memiliki nilai derajat swelling lebih tinggi (0,088) daripada membran PVA-Chitosan crosslinked. Membran PVA-Chitosan crosslinked memiliki selektivitas lebih tinggi daripada membran PVA. Fluks terbesar dimiliki oleh membran PVA senilai 0,833 kgm-2jam-1membran PVA-Chitosan crosslinked 1:1 sebesar 2.820.Kata Kunci : PVA-Chitosan; crosslinked; pervaporasi","PeriodicalId":138501,"journal":{"name":"Jurnal Teknik Kimia Indonesia","volume":"126 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Membran PVA-chitosan crosslinked untuk pemisahan campuran etanol-air secara pervaporasi\",\"authors\":\"I. Noezar\",\"doi\":\"10.5614/jtki.2008.7.1.3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"One of the technologies for ethanol-water separation is pervaporation. The principles of pervaporation is based on the difference in diffusional rate and solubility of the solution components in membranes. The performance of the membrane, in terms of flux and selectivity, is influenced by the swelling of the membrane due to the interaction between the solution components and the membrane materials. Membrane modification is done by forming chemical bonding between PVA and chitosan, using glutaraldehyde as crosslinking agent. The performance of the PVA-chitosan crosslinked membrane for ethanol-water separation is characterized by high mass flux and reasonably high selectivity. Pressure observed on the permeate side was 0.5 mbar, with a feed ethanol concentration of 93%. Experimental results indicate that the PVA membrane has a higher degree of swelling compared to the crosslinked PVA-chitosan membrane. The PVA-chitosan crosslinked membrane has a higher selectivity compared to the PVA membrane. The highest flux of 0.833 kgm-2hour-1 was produced by the PVA membrane. The highest selectivity of 2.820 was obtained using a 1:1 PVA-chitosan crosslinked membrane.Keywords: PVA-chitosan; crosslinked; pervaporation Abstrak Salah satu teknologi untuk pemisahan etanol-air adalah pervaporasi. Prinsip pemisahan pervaporasi adalah dengan perbedaan laju difusi dan kelarutan komponen campuran pada membran. Kinerja membran berupa fluks dan selektivitas dipengaruhi oleh kondisi swelling membran akibat interaksi komponen dengan material membran. Modifikasi membran dilakukan dengan membentuk ikatan kimia antara PVA dan chitosan dengan glutaraldehid sebagai crosslinking agent. Kinerja membran PVA-Chitosan crosslinked dalam pemisahan campuran etanol-air berupa fluks massa yang tinggi dan selektivitas yang cukup besar. Tekanan pada sisi permeat 0,5 mbar dengan konsentrasi etanol umpan 93%. Hasil penelitian menunjukkan membran PVA memiliki nilai derajat swelling lebih tinggi (0,088) daripada membran PVA-Chitosan crosslinked. 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引用次数: 2
摘要
渗透蒸发是分离乙醇-水的技术之一。渗透蒸发的原理是基于不同的扩散速率和溶液组分在膜中的溶解度。在通量和选择性方面，膜的性能受溶液组分与膜材料相互作用引起的膜膨胀的影响。以戊二醛为交联剂，在聚乙烯醇和壳聚糖之间形成化学键，对膜进行改性。聚乙烯醇-壳聚糖交联膜具有较高的质量通量和较高的选择性。在渗透侧观察到的压力为0.5毫巴，饲料乙醇浓度为93%。实验结果表明，与交联PVA-壳聚糖膜相比，PVA膜具有更高的溶胀度。PVA-壳聚糖交联膜与PVA膜相比具有更高的选择性。PVA膜的通量最高，为0.833 kgm-2hour-1。聚乙烯醇-壳聚糖交联膜的选择性最高，为2.820。关键词:PVA-chitosan;交联;摘要:空气渗透蒸发技术的研究进展。Prinsip pemisahan pervaporasi adalah dengan perbedaan laju difusi dan kelarutan komponen campuran padas成员。金银花膜、吸附膜、选择性膜、溶胀膜、基质膜、基质膜。改性壳聚糖、壳聚糖、戊二醛、戊二醛交联剂。金纳佳膜聚乙烯醇-壳聚糖交联聚丙烯酰胺脲醇-空气分离剂的制备及其抗氧化活性。Tekanan paadsisi perper0,5 mbar登安konsentrasi乙醇公司93%。hail penelitian menunjukkan膜PVA memiliki nilai derajat膨胀lebih tinggi (0,088) daripada膜PVA-壳聚糖交联。膜PVA-壳聚糖交联膜的选择性研究。Fluks terbesar dimiliki oleh膜PVA senilai 0.833 kg -2jam-1膜PVA-壳聚糖交联1:1 sebesar 2.820。Kata Kunci: pva -壳聚糖;交联;pervaporasi
Membran PVA-chitosan crosslinked untuk pemisahan campuran etanol-air secara pervaporasi
One of the technologies for ethanol-water separation is pervaporation. The principles of pervaporation is based on the difference in diffusional rate and solubility of the solution components in membranes. The performance of the membrane, in terms of flux and selectivity, is influenced by the swelling of the membrane due to the interaction between the solution components and the membrane materials. Membrane modification is done by forming chemical bonding between PVA and chitosan, using glutaraldehyde as crosslinking agent. The performance of the PVA-chitosan crosslinked membrane for ethanol-water separation is characterized by high mass flux and reasonably high selectivity. Pressure observed on the permeate side was 0.5 mbar, with a feed ethanol concentration of 93%. Experimental results indicate that the PVA membrane has a higher degree of swelling compared to the crosslinked PVA-chitosan membrane. The PVA-chitosan crosslinked membrane has a higher selectivity compared to the PVA membrane. The highest flux of 0.833 kgm-2hour-1 was produced by the PVA membrane. The highest selectivity of 2.820 was obtained using a 1:1 PVA-chitosan crosslinked membrane.Keywords: PVA-chitosan; crosslinked; pervaporation Abstrak Salah satu teknologi untuk pemisahan etanol-air adalah pervaporasi. Prinsip pemisahan pervaporasi adalah dengan perbedaan laju difusi dan kelarutan komponen campuran pada membran. Kinerja membran berupa fluks dan selektivitas dipengaruhi oleh kondisi swelling membran akibat interaksi komponen dengan material membran. Modifikasi membran dilakukan dengan membentuk ikatan kimia antara PVA dan chitosan dengan glutaraldehid sebagai crosslinking agent. Kinerja membran PVA-Chitosan crosslinked dalam pemisahan campuran etanol-air berupa fluks massa yang tinggi dan selektivitas yang cukup besar. Tekanan pada sisi permeat 0,5 mbar dengan konsentrasi etanol umpan 93%. Hasil penelitian menunjukkan membran PVA memiliki nilai derajat swelling lebih tinggi (0,088) daripada membran PVA-Chitosan crosslinked. Membran PVA-Chitosan crosslinked memiliki selektivitas lebih tinggi daripada membran PVA. Fluks terbesar dimiliki oleh membran PVA senilai 0,833 kgm-2jam-1membran PVA-Chitosan crosslinked 1:1 sebesar 2.820.Kata Kunci : PVA-Chitosan; crosslinked; pervaporasi
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